Clamp On Earth Resistance Tester Jaw Capacity 1.5 in (39mm) Leakage Current Range 0.5 mA to 35 A Number of Records Stored 256 Resistance Accuracy High Range +/-35 Percent Low Range +/-1.5 Percent Communication Protocol Bluetooth Includes 4-AA Batteries Calibration Check Carrying Case Carrying Wrist Strap User Guide CD-ROM